# Exception Workflow API

*/Software/Exception_Workflow_API*

## Solution Overview

The Exception Workflow API ingests low-confidence inferences, unparseable inputs, and API failure payloads from autonomous systems and standardizes them into structured review tickets. It suspends the parent process, routes the context to a designated reviewer via Slack or a web dashboard, and injects the eventual human decision back into the exact execution step where the failure occurred. This guarantees that edge cases are resolved without dropping the transaction state or forcing developers to build custom exception-handling interfaces.

Platform engineering teams and developers of autonomous agents integrate this API to offload the burden of building custom escalation paths. When a scheduling agent encounters an unresolvable constraint or an invoice extraction model fails a strict validation threshold, the API removes the need to hardcode a unique fallback state. Engineers buy a unified, cross-application standard for managing the queue of edge cases, ensuring their core agents remain focused on the optimal execution path.

Operating as a foundational headless primitive, the API sits directly beneath agent orchestrators and Services-as-Software applications. It consumes raw error logs and execution contexts from the failing processes, and it exposes secure webhooks for the overlying orchestrator to resume operation once the exception is cleared. Because it is explicitly designed for high-stakes human-in-the-loop workflows, the API logs every manual override and reviewer ID, providing an immutable audit trail of exactly when and how a human operator corrected the autonomous system.

## Headless Saas Data Model

**Entities**:
- Name: ExceptionTicket · Description: Standardized review case generated from an autonomous system failure or low-confidence inference
- Name: Workspace · Description: Tenant anchor that scopes all exceptions, reviewers, and webhooks to a specific organization
- Name: Reviewer · Description: Human operator authorized to resolve exception tickets and provide manual overrides
- Name: Resolution · Description: The exact human decision payload injected back into the execution step
- Name: AuditLog · Description: Immutable ledger tracking exactly when and how a human operator corrected the system
- Name: WebhookTarget · Description: Destination URL where the overlying orchestrator is notified to resume operation
**Relations**:
- To: ExceptionTicket · From: Workspace · Label: owns · Cardinality: one-to-many
- To: Reviewer · From: Workspace · Label: authorizes · Cardinality: one-to-many
- To: WebhookTarget · From: Workspace · Label: configures · Cardinality: one-to-many
- To: Resolution · From: ExceptionTicket · Label: is solved by · Cardinality: one-to-one
- To: Resolution · From: Reviewer · Label: submits · Cardinality: one-to-many
- To: AuditLog · From: Resolution · Label: generates · Cardinality: one-to-many
**Tenant Anchor**: Workspace
**Primary Resource**: ExceptionTicket

## Api Definition

**Protocols**:
- REST
- SDK
- MCP
- Webhooks
**Consumed By**:
- [Invoice Extraction Agent](/Agents/Invoice_Extraction_Agent)
- [Scheduling Agent](/Agents/Scheduling_Agent)
- [AP Triage Agent](/Agents/AP_Triage_Agent)
**Integrations**:
- [Slack](/Products/Slack)
- [Temporal](/Products/Temporal)
- [LangChain](/Products/LangChain)
**Consumption Model**: An autonomous agent calls escalate_process_exception via MCP when inference confidence drops, suspending its execution thread until the API pushes the human decision payload back via webhook.
**Workflow Wrappers**:
- Name: Escalate Process Exception · Wraps: creates the exception ticket, logs the failure payload, and routes the Slack notification
- Name: Apply Human Resolution · Wraps: records the decision payload, generates the audit log, and fires the resumption webhook

## Api Function Cascade

**Ai Role**: As a stateless headless primitive, deterministic code and generative summaries run end-to-end to manage the alert lifecycle, suspending the calling software thread until a human explicitly reviews the exception state in Slack and triggers the automated resumption payload.
**Cascade**:
- Kind: Code · Note: Receives the failure state from the calling agent via MCP · Step: Ingest Exception Payload · Verb: ingest · Realizes: Log System Error · Oversight: none
- Kind: Generative · Note: Transforms the raw JSON payload into a contextual summary for Slack · Step: Generate Alert Context · Verb: summarize · Realizes: Synthesize Diagnostic Information · Oversight: none
- Kind: Code · Note: Pushes the interactive escalation ticket to the designated human channel · Step: Route Slack Notification · Verb: dispatch · Realizes: Distribute Urgent Messages · Oversight: none
- Kind: Code · Note: Receives the resolution decision pushed back from the Slack interface · Step: Capture Resolution Payload · Verb: capture · Realizes: Record Decision Outcomes · Oversight: none
- Kind: Code · Note: Compiles the failure context and human resolution into a durable log · Step: Generate Audit Record · Verb: format · Realizes: Produce Compliance Documentation · Oversight: none
- Kind: Code · Note: Signals Temporal to resume the suspended agentic thread · Step: Emit Resumption Webhook · Verb: emit · Realizes: Trigger Subsequent Activity · Oversight: none
**Optimizes**:
- [Exception Turnaround Time](/Metrics/Exception_Turnaround_Time)
- [Agent Thread Resumption Rate](/Metrics/Agent_Thread_Resumption_Rate)
- [Audit Trail Completeness](/Metrics/Audit_Trail_Completeness)

## Headless Saas Representative Offer

**Warranty**: Ensures 99.9% availability for API ingestion and webhook dispatch, backed by pro-rated service credits for any monthly availability degradation.
**Price Band**: ~$0.10 to $0.40 per handled exception, depending on monthly resolution volume and required integrations
**Pricing Kind**: UsageMeter
**Deliverables**:
- Escalated exception ticket containing the logged failure payload
- Routed Slack notification for human operator intervention
- Recorded decision payload mapping the human resolution
- Immutable resolution audit log entry
- Asynchronous resumption webhook payload
**Delivery Mode**: Agents and developers provision API access instantly via a self-serve portal and are billed entirely on the volume of exceptions successfully routed and resolved.
**Business Function**: ProvideService
**Agent Checkout Support**:
- agentic-commerce-protocol
- stored-credential

## Headless Saas Crud Surface

**Auth Model**: Service Account
**Endpoints**:
- GET /exception-tickets — list exception tickets
- POST /exception-tickets — create an exception ticket
- GET /exception-tickets/{id} — fetch an exception ticket
- PATCH /exception-tickets/{id} — update an exception ticket
- GET /workspaces — list workspaces
- POST /workspaces — create a workspace
- GET /workspaces/{id} — fetch a workspace
- PATCH /workspaces/{id} — update a workspace
- GET /workspaces/{workspaceId}/reviewers — list reviewers for a workspace
- POST /workspaces/{workspaceId}/reviewers — create a reviewer for a workspace
- GET /reviewers/{id} — fetch a reviewer
- PATCH /reviewers/{id} — update a reviewer
- GET /exception-tickets/{exceptionTicketId}/resolutions — list resolutions for an exception ticket
- POST /exception-tickets/{exceptionTicketId}/resolutions — create a resolution to inject a human decision payload
- GET /resolutions/{id} — fetch a resolution
- PATCH /resolutions/{id} — update a resolution
- GET /resolutions/{resolutionId}/audit-logs — list audit logs for a resolution
- POST /resolutions/{resolutionId}/audit-logs — create an audit log entry
- GET /audit-logs/{id} — fetch an audit log
- PATCH /audit-logs/{id} — update an audit log
- GET /workspaces/{workspaceId}/webhook-targets — list webhook targets for a workspace
- POST /workspaces/{workspaceId}/webhook-targets — create a webhook target for a workspace
- GET /webhook-targets/{id} — fetch a webhook target
- PATCH /webhook-targets/{id} — update a webhook target
**Multitenancy**: Row-level isolation
**Webhook Events**:
- exceptionTicket.created
- exceptionTicket.resolved
- resolution.injected

## Headless Saas Erd

```mermaid
erDiagram
  Workspace {
    UUID id PK "tenant key"
    VARCHAR name
    BOOLEAN isActive
  }
  ExceptionTicket {
    UUID id PK
    UUID workspaceId FK
    VARCHAR status
    VARCHAR parentProcess
    JSONB failurePayload
    TIMESTAMP createdAt
  }
  Reviewer {
    UUID id PK
    UUID workspaceId FK
    VARCHAR email
    VARCHAR slackChannelId
  }
  Resolution {
    UUID id PK
    UUID exceptionTicketId FK
    UUID reviewerId FK
    JSONB decisionPayload
    TIMESTAMP injectedAt
  }
  AuditLog {
    UUID id PK
    UUID resolutionId FK
    VARCHAR actionType
    TIMESTAMP recordedAt
  }
  WebhookTarget {
    UUID id PK
    UUID workspaceId FK
    VARCHAR targetUrl
    BOOLEAN isEnabled
  }
  Workspace ||--o{ ExceptionTicket : "owns"
  Workspace ||--o{ Reviewer : "authorizes"
  Workspace ||--o{ WebhookTarget : "configures"
  ExceptionTicket ||--|| Resolution : "is solved by"
  Reviewer ||--o{ Resolution : "submits"
  Resolution ||--o{ AuditLog : "generates"
```

## Neighborhood

### Composed into

- [Schema Agnostic Parser Agent](/Agents/Schema_Agnostic_Parser_Agent) — composes · Agents
- [Financial accounting service](/Services/Financial_accounting_service) — composes · Services

### Optimizes

- [Agent Thread Resumption Rate](/Metrics/Agent_Thread_Resumption_Rate) — optimizes · Metrics
- [Audit Trail Completeness](/Metrics/Audit_Trail_Completeness) — optimizes · Metrics
- [Exception Turnaround Time](/Metrics/Exception_Turnaround_Time) — optimizes · Metrics

### What it uses

- [Temporal](/Products/Temporal) — uses · Products
- [LangChain](/Software/LangChain) — uses · Software
- [Slack](/Software/Slack) — uses · Software

### Who consumes this

- [AP Triage Agent](/Agents/AP_Triage_Agent) — consumed by · Agents
- [Invoice Extraction Agent](/Agents/Invoice_Extraction_Agent) — consumed by · Agents
- [Scheduling Agent](/Agents/Scheduling_Agent) — consumed by · Agents

### Similar Agents

- [Exception Routing Agent](/Agents/Exception_Routing_Agent) — similar · Agents
- [Exception Triage Agent](/Agents/Exception_Triage_Agent) — similar · Agents
- [Declarative Provisioning API](/Agents/Declarative_Provisioning_API) — similar · Agents
- [Pipeline Gateway API](/Agents/Pipeline_Gateway_API) — similar · Agents
- [Agnostic Ingestion API](/Agents/Agnostic_Ingestion_API) — similar · Agents
- [Support Escalation Agent](/Agents/Support_Escalation_Agent) — similar · Agents
- [Gateway Ingestion API](/Agents/Gateway_Ingestion_API) — similar · Agents
- [Pipeline Integration API](/Agents/Pipeline_Integration_API) — similar · Agents

### Similar Verbs

- [handle](/Verbs/handle) — similar · Verbs

### Similar Software

- [API Request Router](/Software/API_Request_Router) — similar · Software
- [Pipeline Control API](/Software/Pipeline_Control_API) — similar · Software
- [Payment Integration API](/Software/Payment_Integration_API) — similar · Software
- [Workflow Management Systems](/Metrics/Internal_Review_Cycle_Time/Software/Workflow_Management_Systems) — similar · Software
- [GRC Platforms](/Metrics/Remediation_Completion_Rate/Software/GRC_Platforms) — similar · Software

### Similar Metrics

- [Exception Rate](/Metrics/Exception_Rate) — similar · Metrics
- [Exception Routing Rate](/Metrics/Exception_Routing_Rate) — similar · Metrics
- [Number of monthly non-routine](/Metrics/Number_of_monthly_non-routine) — similar · Metrics
- [Exception Processing Rate](/Metrics/Exception_Processing_Rate) — similar · Metrics

### Similar Resources

- [Adjudication APIs](/Resources/Adjudication_APIs) — similar · Resources

### Similar Problems

- [Exception Routing](/Problems/Exception_Routing) — similar · Problems